combine basil, lime, and palm sugar.grind in blender until lime is ground fine, adding coconut milk a few ounces at a time to facilitate fine ground.add remaining coconut milk, rum, and blend well.transfer to serving pitcher.for each serving, blend 1 cup drink mix with ice, adding up to two cups, 1 cup at a time, until desired consistency is achieved. bruise mint by rolling between your palms, and use for garnish alongside slice of lime.slip in a straw, sit back, and say ahhhhhhhhhh.